SQNPM SERIES OVERLAY MATTRESS is a 4 1/2” comprises with sumptuous Pressure Relief Overlay Mattress system with low air loss. It can be able to simply fit into any hospital's bed, the low air loss holes on the air cells offer good ventilation and maintain patients dry from moisture. This system is apt for treatment of pressure sore in stage I & II, prevention from the maximum weight capacity of 130 kgs.